F24H 1/285
With the fire tubes arranged alongside the combustion chamber
Official title: {with the fire tubes arranged alongside the combustion chamber}
F24H1/285 (With the fire tubes arranged alongside the combustion chamber) appears on 57 US grants and 28 published applications in this corpus.
Search patents in F24H- Granted patents
- 57
- Published applications
- 28
- Assignees
- 35
- Inventors
- 98
- Latest grant
- 22 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 4 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 1 | 0 |
| 2014 | 2 | 2 |
| 2015 | 0 | 3 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 4 |
| 2020 | 0 | 2 |
| 2021 | 3 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Wavy smoke tube structure of boiler22 Apr 2025US 12,281,818 B2
- Reduced size fire tube boiler system and method of operating same30 May 2023US 11,662,120 B2Cleaver-Brooks, Inc.
- Hybrid condensing boiler with preheater5 Jul 2022US 11,378,307 B2Enerpro, Inc.
- Water heater blower leakage detection3 Aug 2021US 11,079,139 B2A. O. Smith Corporation
- Boiler heating system13 Jul 2021US 11,060,759 B2
- Water heater15 May 2025US 2025/0155162 A1Kyungdong Navien Co., Ltd.
- Combustion boiler28 Sep 2023US 2023/0304658 A1
- Wavy smoke tube structure of boiler6 Oct 2022US 2022/0316759 A1
- Hybrid condensing boiler with preheater11 Feb 2021US 2021/0041139 A1Enerpro, Inc.
- Apparatus for Firetube Boiler and Ultra Low NOx Burner7 Jan 2021US 2021/0003277 A1
Most cited
By later US patents
- Low NO.sub.x multistage combustor110US 6,089,855 AThermo Power Corporation · 2000
- Energy recovery system for an incinerator51US 4,485,746 AKelley Company, Inc. · 1984
- Gas fired water heater35US 4,852,524 AAerco International, Inc. · 1989
- Method of regulating the fuel-air mixture in a burner28US 4,978,291 A1990
- Engine Heater20US 4,706,644 A1987